the shocking news from hollywood this weekend. Actor paul walker, who began a acting as a child, then starring in the "fast & furious" films, dying in a car crash. Tonight, the last image of him alive, and his fellow actors now paying tribute. Abc's cecilia vega paying tribute tonight. Reporter: Just minutes after actor paul walker, known for his role in the blockbuster hits "fast & furious" and his friend, pro racer roger rodas, drove off -- this. When rescue crews arrived, the fire ball was still burning. Witnesses tried to put the fire out, too. It was too late. Both men were pronounced dead at the scene. There was nothing. We tried. We went through fire extinguishers. Reporter: The red porsche so mangled, it was unrecognizable. The pole it hit, bent in two. Carried away this afternoon, part of an investigation that is still under way. On saturday, the 40-year-old actor attended a toy drive and car show. His 15-year-old daughter and rodas' son were there, too. Here's walker looking at that porsche in one of his last known photos. Friend jim torpe spoke to both men before they crashed, just a few blocks away from the charity event in a car that can reach up to 240 miles an hour. He's a professional driver. This is not his first time driving a car like this. Right. That's why I'm shocked. Reporter: This is the spot where the crash happened. And take a look at this. Police tell us the impact was so great, a chunk of the car flew all the way from here, into that building, breaking that window. Walker was on a break from filming "fast & furious 7." "Fast & furious" co-star tyrese gibson was ming those who came to the crash scene to grieve taeshgsd as stunned friends and fans tried to make sense of the death of an actor that tragically mirrors the movies he made. What was the last thing you heard paul say? I'll be right back. That was the last thing paul said. Reporter: This memorial has been growing in size all day. Paul walker fans showing up, many of them driving here in their high end sports cars to pay their respects. As for that "fast & furious" sequel, david, it is now reportedly facing a delay in production.

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